US8551045B2 - Fluid infusion system, a method of assembling such system and drug reservoir for use in the system - Google Patents

Fluid infusion system, a method of assembling such system and drug reservoir for use in the system Download PDF

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US8551045B2
US8551045B2 US12/297,340 US29734007A US8551045B2 US 8551045 B2 US8551045 B2 US 8551045B2 US 29734007 A US29734007 A US 29734007A US 8551045 B2 US8551045 B2 US 8551045B2
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reservoir
piston
wall
fluid
wall engaging
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US20090299288A1 (en
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Gunnar Monrad Sie
Carsten Lund
Niels Frederik Keiser-Nielsen
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Novo Nordisk AS
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Novo Nordisk AS
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Assigned to NOVO NORDISK A/S reassignment NOVO NORDISK A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LUND, CARSTEN, SIE, GUNNAR MONRAD
Publication of US20090299288A1 publication Critical patent/US20090299288A1/en
Assigned to NOVO NORDISK A/S reassignment NOVO NORDISK A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KEISER-NIELSEN, NIELS FREDERIK
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14566—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir for receiving a piston rod of the pump
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31515—Connection of piston with piston rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod

Definitions

  • the present invention relates generally to medical delivery systems for managing medical therapy. More specifically, the invention relates to a fluid infusion system comprising a medication reservoir for containing a medical fluid and for use in combination with a fluid infusion pump, wherein the medication reservoir comprises a slideable piston having means for enhancing the frictional engagement between the piston and the reservoir wall.
  • Diabetes mellitus is the common name for at least 2 different diseases, one characterised by immune system mediated specific pancreatic beta cell destruction (insulin dependent diabetes mellitus (IDDM) or type 1 diabetes), and another characterised by decreased insulin sensitivity (insulin resistance) and/or a functional defect in beta cell function (non-insulin dependent diabetes mellitus (NIDDM) or type 2 diabetes).
  • IDDM immune system mediated specific pancreatic beta cell destruction
  • insulin resistance insulin sensitivity
  • NIDDM non-insulin dependent diabetes mellitus
  • type 1 diabetes The principal treatment of type 1 diabetes is straight forward substitution of the missing insulin secretion, whereas treatment of type 2 is more complicated. More specifically, in early stages of type 2 diabetes treatment a number of different types of drugs can be used, e.g. drugs which increase insulin sensitivity (ciglitazones), decrease hepatic glucose output (e.g. metformin), or reduce glucose uptake from the gut (alfa glucosidase inhibitors), as well as drugs which stimulate beta cell activity (e.g. sulfonylurea/meglitinides).
  • beta cell stimulators will eventually fail to stimulate the cell, and the patient has to be treated with insulin, either as mono therapy, or in combination with oral medication in order to improve glucose control.
  • an infusion pump may provide fully automatic closed loop control of insulin infusion.
  • the fluent medicine is usually contained in a reservoir, which can be either a user fillable reservoir or a pre-filled disposable reservoir.
  • a reservoir can be provided as a cylindrical barrel having a penetrable membrane at a proximal end and a movable piston at the opposite distal end.
  • a conduit penetrating the membrane is mounted at the proximal end.
  • Some commercially available infusions pumps are adapted to include a user-fillable reservoir, which the user fills with the medicament prior to use.
  • Such fillable reservoirs usually includes a piston having the back wall provided with an interior thread into which a pull rod is screwed. The piston can then be moved backwards inside the fillable reservoir, and the reservoir can be filled with medicine from a vial. Once the reservoir has been filled, the pull rod is disconnected from the piston and the reservoir is inserted into the medication pump.
  • a linear actuation member is adapted to engage the piston when a reservoir is inserted into the medication pump.
  • Some coupling mechanisms rely on a positive locking of the linear actuation member to the piston where the coupling is maintained throughout the use of a single reservoir.
  • pre-filled reservoirs in pump systems.
  • various conditions have to be taken into consideration in order to provide a reservoir which is suitable for long term storage of insulin.
  • Conventional reservoir materials such as glass for the reservoir wall and specific rubber compositions for completely or partly constituting the piston are generally accepted for constituting insulin prefilled cartridges.
  • conventional glass cartridges are subject to a siliconization process in order to reduce static friction between the cartridge wall and the piston.
  • WO patent application No. 2005/002652 discloses an infusion or injection device being provided with a mechanism which secures the connection between a piston and an output member against axial displacement.
  • the connection is established by axially displacing the output member and the piston relative to each other. Disconnection is obtained by relatively twisting the output member with respect to the piston.
  • connection between the actuation member and the piston is provided by a number of resilient engagement parts extending from the actuation member, where the end of the engagement parts cooperates with an internal thread formed in the piston. Due to the piston being formed of a flexible material, and due to the limited contact surface between the piston thread and the engagement parts of the actuation member, a connection is established which is rather flexible in the axial direction, leading to inaccuracies in the amount of fluid dispensed by the infusion pump.
  • U.S. Pat. No. 6,800,071 discloses a piston for a fluid medicament reservoir where the piston is formed by a flexible sealing part and a more rigid part inserted in the flexible part, thereby providing rigidity and stability to the flexible part.
  • some pump systems may have an occlusion detection system which uses the axial force on the drive train as an indicator of pressure within a reservoir.
  • the provision of having a relatively stiff and incompressible piston improves the speed that an possible occlusion can be detected.
  • the flexible piston part is provided with threads for threadedly coupling the piston to corresponding threads on a linear actuation member of the pump drive system.
  • U.S. Pat. No. 6,569,126 and GB patent application No. 2,117,249 discloses syringes having a slideable piston inserted into the syringe.
  • the disclosed syringes are provided with pistons having additional means for excluding rearwards movement of the piston.
  • Neither of those references include disclosure of piston constructions having means for a well defined enhancement of the frictional engagement between piston and syringe wall during forward movement of the piston.
  • a further object of the present invention is to provide a reservoir for containing a drug to be infused into a patient, wherein the the piston of the reservoir is provided with means for ensuring enhanced control of frictional forces between the piston and the reservoir wall.
  • a fluid infusion system which comprises a reservoir adapted to contain the fluid and adapted for use with a pump drive system having a linear actuation member.
  • the reservoir comprises a proximal end adapted to connect to an infusion set, an open distal end and a cylindrical reservoir wall longitudinally extending along an axis from the proximal end to the distal end.
  • the reservoir further comprises a piston adapted to be slideably and frictionally mounted within the reservoir and forming a fluid-tight barrier inside the reservoir.
  • the piston comprises a piston body with at least one peripheral sealing portion made of a material having a first stiffness, wherein the sealing portion is in sealing contact with the inside surface of the reservoir wall.
  • the piston further comprises a friction enhancing member having at least one wall engaging portion at least partially made of a material having a greater stiffness than said first stiffness.
  • the or each wall engaging portion is arranged for frictionally engaging the cylindrical wall of the reservoir so as to exert a radially outwards directed force component against the cylindrical wall.
  • the friction enhancing member is adapted to increase the frictional forces exerted on the reservoir wall when the piston is forced to move in a direction towards the proximal end of the reservoir.
  • the friction enhancing member may comprise a central section so that each wall engaging portion is coupled to the central section by a flexible shank portion or arm bridging the wall engaging portion with the central section. All of the wall engaging portions may be coupled together by one particular central section, or alternatively, groups of wall engaging portions may be mutually coupled by respective separate central sections. Also, the wall engaging portions may be individually held by the piston flexible material.
  • the one or more wall engaging portions extend in a plane substantially perpendicular to the longitudinally axis of the reservoir.
  • some or all of the wall engaging portions extends at an inclined angle with respect to a plane arranged perpendicular to the longitudinally axis of the reservoir.
  • the flexible shank portions or arms bridging the wall engaging portions may be so arranged as to force the wall engaging portion to move only in directions substantially perpendicular to the longitudinally axis when forces are exerted onto the wall engaging portion of the friction enhancing member. In this way, a system is obtained providing enhanced rigidity when unintentional forces are exerted on the piston.
  • the flexible shank portions or arms may be formed at least a part of the flexible shank portions or arms as longitudinally extending members forming an angle relative to a plane perpendicular to the longitudinal axis such as greater than 20 degrees, such as greater than 60 degrees.
  • the flexible shank portions are arranged at an angle of approximately 90 degrees with respect to a plane perpendicular to the longitudinal axis.
  • At least one of the wall engaging portions may be provided with an arcuate surface shaped to abut the interior wall surface of the cylindrical reservoir wall along the arcuate surface.
  • the piston body has a first external proximate side being adapted to contact the fluid and an external distal side defining an opening leading into a cavity.
  • the frictional enhancing member may be provided with means for fixedly retaining said frictional enhancing member inside said cavity.
  • the piston may further comprise a third member adapted to releasably couple to the linear actuation member of the infusion pump drive system.
  • the third member may be adapted to fixedly secure said third member to said friction enhancing member and/or said piston body.
  • the linear actuation member may comprise one or more protrusions, such as a circular rim or one or more threaded portions so that the third member may engage said one or more protrusions.
  • the friction enhancing members are partly or fully made of steel or spring steel.
  • the friction enhancing members may be made of a hard resin material.
  • the piston body and the at least one sealing portion of the piston are formed unitarily.
  • the piston body may comprise a material having a greater stiffness than the material of the at least one sealing portion of the piston, and in such systems, the piston body and the friction enhancing member may be formed unitarily.
  • the piston is formed by co-molding the piston body and the friction enhancing member so that the friction enhancing member is partly or fully encapsulated by the piston body.
  • a method for assembling a fluid infusion system suitable for infusing a medication fluid comprising the steps of:
  • a reservoir for use in the above described fluid infusion system is provided.
  • the reservoir of all the above described aspects may be formed by a section of glass forming the cylindrical wall. Said wall may on its internal surface be subjected to a siliconizing process.
  • the reservoir may form a pre-filled cartridge with the medicament accommodated therein for forming a unit ready to be used in an infusion pump.
  • drug As used herein, the terms “drug”, “medicament” or “fluid” is meant to encompass any drug-containing flowable medicine capable of being passed through a delivery means such as a hollow needle in a controlled manner, such as a liquid, solution, gel or fine suspension.
  • Representative drugs include pharmaceuticals such as peptides, proteins, and hormones, biologically derived or active agents, hormonal and gene based agents, nutritional formulas and other substances in both solid (dispensed) or liquid form.
  • a delivery means such as a hollow needle in a controlled manner, such as a liquid, solution, gel or fine suspension.
  • Representative drugs include pharmaceuticals such as peptides, proteins, and hormones, biologically derived or active agents, hormonal and gene based agents, nutritional formulas and other substances in both solid (dispensed) or liquid form.
  • the terms “subcutaneous” and “transcutaneous” infusion is meant to encompass any method of transcutaneous delivery to a subject.
  • FIG. 1 is a cut-away perspective view of a conventional infusion pump designed for use with the reservoir according to the present invention
  • FIG. 2 shows a perspective view of a piston body according to the present invention
  • FIG. 3 shows a perspective view of a friction enhancing member according to the invention
  • FIG. 4 is a sectional plan view of the piston body and friction enhancing member shown in FIGS. 2 and 3 inserted into a reservoir,
  • FIG. 5 shows a perspective view of an engagement member for coupling to a linear actuator according to a second aspect of the invention
  • FIG. 6 shows cut-away perspective views of the piston assembly of the second embodiment coupled to a linear actuation member.
  • FIG. 1 is a schematic representation of an exemplary infusion pump 300 adapted for receiving a medicament containing reservoir 100 in accordance with the present invention. This schematic representation corresponds to the infusion pump disclosed in U.S. Pat. No. 6,800,071 which is hereby incorporated in its entirety.
  • Infusion pump 300 includes reservoir receiving cavity 312 adapted to accommodate a user-filled or pre-filled insulin reservoir 100 .
  • Reservoir 100 is provided with coupling means for releasably securing a connector 200 to reservoir 100 .
  • Connector 200 further forms part of an infusion set which includes an infusion set tubing (not shown).
  • connector 200 comprises coupling means 201 for coupling with the housing part 301 of the infusion pump 300 , whereby both infusion tubing and the reservoir are coupled to the housing 301 of the infusion pump 300 when connector 200 is secured to the pump housing.
  • FIG. 1 also schematically depicts a piston drive system comprising a driving device such as a motor 302 arranged for driving a linear actuation member 310 for successively driving a piston accommodated in the reservoir 100 towards the proximal end of the reservoir.
  • a driving device such as a motor 302 arranged for driving a linear actuation member 310 for successively driving a piston accommodated in the reservoir 100 towards the proximal end of the reservoir.
  • the linear actuation member 310 is provided with protrusions in the form of an external thread 311 , which is adapted for coupling to the piston included in reservoir 100 .
  • the linear actuation member 310 simply abuts the piston.
  • the remaining parts of the infusion pump are not shown or described here, but are considered the object of a normal design procedure performed by the skilled person along the lines set out in the present specification and in the prior art.
  • the reservoir 100 includes a proximal end closed by a piercable membrane (not shown) and means adapted to connect to an infusion set, an open distal end and a cylindrical wall longitudinally extending between the proximal and the distal end of the reservoir.
  • FIG. 2 shows a piston body 120 comprising one or more circumferential sealing portions 121 for providing a fluid-tight seal against the reservoir wall. At least the sealing portions 121 of piston body 120 are formed by an elastomeric material such as rubber defining a first stiffness.
  • the rear part of piston body 120 includes a cavity which is adapted to receive a friction enhancing member 110 (see FIG. 3 ), and a linear actuation member 310 of an infusion pump 300 .
  • a circular inwardly extending rim 124 is provided which is adapted to mate with retaining means 114 of the friction enhancing member 110 .
  • the friction enhancing member 110 is provided with a number of longitudinally extending flexible shanks or arms which forms connections towards radially extending friction engaging endpoints 112 adapted to frictionally engage the reservoir wall 101 .
  • the friction enhancing member 110 is at least partially made of a material of greater stiffness than the material forming the sealing portion 121 of the piston body 120 .
  • the material of the friction enhancing member are selected and the dimensioning of this member is chosen so as to provide a flexible component.
  • the material partly or fully constituting the friction enhancing member may be selected as a steel material, a spring steel, a composite material or a plastic material.
  • Friction enhancing member 110 generally has a disc or dish-shaped central wall section 115 extending in a plane generally perpendicular to the longitudinal axis of the reservoir.
  • the friction enhancing member 110 is so dimensioned that it exerts a force against opposing surfaces of the piston body cavity so that the friction enhancing member 110 is fixedly retained with respect to the piston body 120 .
  • the distal face of wall section 115 is adapted to receive the end face of a linear actuation member 310 so that the linear actuation member 310 can be seated in abutment with the friction enhancing member 110 .
  • the dish-shaped wall section may be formed generally convex in order to stretch the inner proximate end face of the piston body 120 , when friction enhancing member 110 is inserted therein.
  • piston body 120 and the friction enhancing member 110 are so designed that complete uninterrupted contact is maintained between these two elements during all possible operating conditions.
  • FIG. 4 A section of the reservoir 100 is shown in FIG. 4 , where 101 denotes the reservoir wall. Also shown in FIG. 4 is a piston assembly formed by the piston body 120 and friction enhancing member 110 . The figure shows the elements superposed in their unstressed condition and indicates that the proximate wall section of the piston body 120 will be stretched when friction enhancing member 110 is inserted into the cavity formed in the piston body 120 . Also the side section of the piston body 120 will be stressed or expanded in an axial direction by the retaining means 114 of friction enhancing member 110 .
  • the piston assembly is slideably mounted along the longitudinal axis from the distal end of the reservoir towards the proximal end in order to expel medication from the proximal end of the reservoir.
  • piston body 120 Prior to insertion of piston assembly ( 110 , 120 ) into the cylindrical wall section 101 of the reservoir, the piston body 120 is in a generally unstressed condition, allowing friction enhancing member 110 to be inserted into the cavity formed in piston body 120 . After the piston assembly has been inserted into the cylindrical wall section 101 of the reservoir, the piston body 120 is radially compressed by the wall sections 101 of the reservoir thereby providing a fixed retainment of friction enhancing member 110 inside piston body 120 . Due to the form-fitting engagement of friction enhancing member 110 and the piston body 120 , and due to the large contact surface between these two elements, a relatively stiff connection is obtained providing minimal flexibility in the longitudinal direction.
  • the protruding arms 111 ending in friction engaging endpoints 112 are compressed radially inwards due to a reduced diameter of the inner wall of the reservoir compared to the effective diameter of the protruding arms in their unstressed condition. Due to the elastically deformable material of friction enhancing member 110 and due to the said radial compression, the friction enhancing member 110 exerts a force on the cylindrical wall 101 , whereby this force has a radially outward directed force component. A suitable force in the order of 200 Mpa may be exerted on the side wall of the reservoir. Due to an increase in the frictional engagement between friction engaging portion 112 and the reservoir wall 101 , the piston is frictionally held abutted against the linear actuation member 310 .
  • the wall engaging portions 112 of friction enhancing member 110 may extend in a plane perpendicular to the longitudinal axis of the reservoir. Alternatively, each of the wall engaging portions 112 may be slightly inclined to extend radially outwards and in a direction against the distal end of the reservoir so as to facilitate insertion of friction enhancing member 110 into the reservoir.
  • the wall engaging portions 112 may be polished or alternatively be provided with a coating.
  • a third member 130 (shown in FIG. 5 ) is introduced into the piston assembly according to the first embodiment described above.
  • the third member 130 provides coupling engagement between the piston body 120 or the friction enhancing member 110 and the linear actuation member 310 . Also, the third member 130 provides additional stability to the piston.
  • the third member 130 may be provided with coupling means (not shown) adapted for keyed connection to mating key-shaped coupling means 116 formed in friction enhancing member 110 (shown in FIG. 3 ).
  • the third member 130 comprises a generally dish- or disc-shaped proximal wall section being adapted to be seated against the end face of linear actuation member 310 .
  • the third member 130 further comprises one or more longitudinally extending members 133 connecting said proximal wall section to circular rim 134 arranged at the distal side of the third member 130 .
  • one or more connective members 131 generally extends in the longitudinal direction of the reservoir, thereby being substantially rigid in the longitudinal direction. Due to the shape of the connective members 131 and the material chosen, the connective members are able to flex in the radial direction.
  • the connective members 131 are adapted to couple with the linear actuation member 310 of an infusion pump, when linear actuation member 310 is inserted into the piston assembly ( 110 , 120 , 130 ).
  • connective members 131 are shown as extending from circular rim 134 , other alternative embodiments may include connective members 131 extending from the proximal wall section of the third member 130 . Still, other alternatives may include connective members 131 which may be connected both to circular rim 134 and the proximal wall section of the third member 130 .
  • connective members 131 are formed as a number of arms extending in the proximal direction, where each arm is provided with a protrusion 132 which are adapted to mate with protrusions formed on linear actuation member 310 , i.e. to snap or catch behind protrusions formed on linear actuation member 310 .
  • the connective members 131 may be provided with protrusions 132 arranged in a common plane perpendicular to the longitudinal axis of the reservoir. Further, to ensure line contact between threads of linear actuation member 310 and the protrusions 132 , the protrusions 132 may be formed with inclined surfaces (not shown) corresponding to the pitch of the thread of the linear actuation member 310 .
  • each of the protrusions 132 may be positioned in mutual different distances from the dish-shaped wall section. In this way, it is ensured that at least some of the protrusions 132 catches behind one ridge formed on linear actuation member 310 , thereby ensuring a rigid connection having no play.
  • the number of connective members 131 is generally chosen on the basis of the particular design of the linear actuation member 310 so that at least one connective member is able to engage corresponding protruding elements of the linear actuation member 310 .
  • the number of connective members 131 preferably is in the order of 10-15. Thereby it is ensured that at least one protrusion 132 engages a groove between two consecutive threads 311 .
  • a pure frictional engagement may be obtained. Particularly, this is the case if the linear actuation member 310 is not provided with protrusions.
  • the connective members 131 are formed to exert a radially inward directed force on linear actuation member 310 , the force exerted by the connective members being adapted to grip firmly on the linear actuation member 310 .
  • the third member 130 is preferably formed with a channel or opening extending from the distal side to the proximate side of the third member. Thereby it is ensured that the piston assembly can be properly auto-claved. Also, the piston body 120 and the friction enhancing member 110 , and the third member 130 , if included, are formed so that, during auto-claving, several piston assemblies arranged in a stacked formation cannot stick together and draw vacuum. This can be obtained by ensuring that the friction enhancing member 110 or the third member 130 are dimensioned to obstruct the adherence between two consecutive piston assemblies.
  • FIG. 6 shows perspective cut-away views of the piston body 120 , the friction enhancing member 110 and the third member 130 . Furthermore FIG. 6 shows a linear actuation member 310 . The four elements depicted are shown superposed in their relaxed state as they appear when not mutually connected. Again, it is readily apparent that the piston body is expanded by the insertion of the friction enhancing member 110 into the piston body 120 . Thereby a relatively rigid piston can be obtained.
  • connection between the piston assembly and the linear actuation member 310 may be established as a pure linear axial displacement. However, the connection can also be established where one of the two elements are rotated with respect to the other.
  • the disconnection between the piston assembly and the linear actuation member 310 may occur by a purely linear axial displacement without jamming the connective elements.
  • the connection may be designed to permit disengagement by exerting a linear disengagement force of greater than 1N and less than 10 N.
  • the disconnection may be provided by a relative twisting of the two elements.
  • the piston body 120 , the friction enhancing member 110 and the third member 130 are provided as distinct members being assembled before insertion of the piston assembly into the reservoir.
  • the friction enhancing member 110 may be fully or partly molded into the piston body 120 by an injection molding operation, whereby a relatively less stiff material forming the piston member 120 may be designed to fill out the intervening space between the protruding arms 111 of friction enhancing member 110 .
  • the protruding arms 111 of the friction enhancing member 110 may be radially inwardly compressed during a molding operation, where the material forming the piston body or the piston seal are injection molded partly or fully encircling the protruding arms 111 .
  • the materials chosen for the reservoir wall can be glass or a material made from a cyclic olefin copolymer (COC), or alternatively, polypropylene.
  • the materials for the piston body sealing portion 121 may be any elastomeric material suitable for making a fluid-tight sealing while being compatible for long time storage of the medicament contained in the reservoir.
  • the materials chosen for the friction enhancing member may be selected as a steel material, a spring steel, a composite material or a plastic material.
  • the materials chosen for the third member may fully or at least partially include metal, plastic, COC or polypropylene. If a plastic material is used, the stiffness of the material should be so that the connective members are substantially stiff in the longitudinal direction while being able to flex in the radial direction. Also, in some embodiments, the connective members may be formed partly of metal.
  • the linear actuation member 310 is formed as a rod for engaging a cavity in the piston assembly ( 110 , 120 , 130 ).
  • the linear actuation member 310 may be formed with a cavity where connective members 131 extending from third member 130 are adapted to be inserted into the cavity of the linear actuation member 310 to provide an engagement interface.
  • the piston assembly according to the invention may be formed as a relatively rigid core member in fluid contact with the fluid to be contained inside the reservoir, and wherein the sealing portion are formed as a circumferential seal arranged in a circular channel formed in the circumferential wall of the core member.
  • the seal may be provided as an o-ring.
  • several distinct sealing members may be arranged at axially different portions of core member.
  • the fluid-tight seal of the piston assembly is obtained by the core member as well as the one or more peripheral seals.
  • the piston body may be formed unitarily with the friction enhancing member.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US12/297,340 2006-04-19 2007-04-19 Fluid infusion system, a method of assembling such system and drug reservoir for use in the system Active 2027-07-21 US8551045B2 (en)

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DKPA200600540 2006-04-19
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US79744706P 2006-05-03 2006-05-03
PCT/EP2007/053865 WO2007118907A1 (en) 2006-04-19 2007-04-19 A fluid infusion system, a method of assembling such system and drug reservoir for use in the system
US12/297,340 US8551045B2 (en) 2006-04-19 2007-04-19 Fluid infusion system, a method of assembling such system and drug reservoir for use in the system

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110301566A1 (en) * 2010-06-05 2011-12-08 Eckhard Schaefer Cartridge connection method for precise delivery of liquid
US20160243306A1 (en) * 2008-11-26 2016-08-25 Acist Medical Systems, Inc. Apparatus and methods for fluid pressurizing units of injection systems
US10307538B2 (en) 2016-01-14 2019-06-04 Bigfoot Biomedical, Inc. Adjusting insulin delivery rates
US10350349B2 (en) 2014-05-20 2019-07-16 Cequr Sa Medicine delivery device with restricted access filling port
US10449294B1 (en) 2016-01-05 2019-10-22 Bigfoot Biomedical, Inc. Operating an infusion pump system
US10500334B2 (en) 2017-01-13 2019-12-10 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
US10583250B2 (en) 2017-01-13 2020-03-10 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
US10610644B2 (en) 2017-01-13 2020-04-07 Bigfoot Biomedical, Inc. Insulin delivery methods, systems and devices
US10758675B2 (en) 2017-01-13 2020-09-01 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
US10857287B2 (en) 2017-01-06 2020-12-08 Trustees Of Boston University Infusion system and components thereof
US10881793B2 (en) 2017-01-13 2021-01-05 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
US10881789B2 (en) 2013-10-24 2021-01-05 Trustees Of Boston University Infusion system for preventing mischanneling of multiple medicaments
US10987468B2 (en) 2016-01-05 2021-04-27 Bigfoot Biomedical, Inc. Operating multi-modal medicine delivery systems
US11027063B2 (en) 2017-01-13 2021-06-08 Bigfoot Biomedical, Inc. Insulin delivery methods, systems and devices
US11147914B2 (en) 2013-07-19 2021-10-19 Bigfoot Biomedical, Inc. Infusion pump system and method
US11278661B2 (en) 2020-03-10 2022-03-22 Beta Bionics, Inc. Infusion system and components thereof
US11331463B2 (en) 2015-07-08 2022-05-17 Trustees Of Boston University Infusion system and components thereof
US11464906B2 (en) 2013-12-02 2022-10-11 Bigfoot Biomedical, Inc. Infusion pump system and method
US11471598B2 (en) 2015-04-29 2022-10-18 Bigfoot Biomedical, Inc. Operating an infusion pump system
US11571507B2 (en) 2019-07-16 2023-02-07 Beta Bionics, Inc. Ambulatory device and components thereof
US11865299B2 (en) 2008-08-20 2024-01-09 Insulet Corporation Infusion pump systems and methods
USD1031975S1 (en) 2020-03-10 2024-06-18 Beta Bionics, Inc. Medicament infusion pump device

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003068290A2 (en) 2002-02-11 2003-08-21 Antares Pharma, Inc. Intradermal injector
BRPI0614025A2 (pt) 2005-01-24 2012-12-25 Antares Pharma Inc injetores de jato
US8551045B2 (en) 2006-04-19 2013-10-08 Novo Nordisk A/S Fluid infusion system, a method of assembling such system and drug reservoir for use in the system
EP2010256A1 (en) 2006-04-19 2009-01-07 Novo Nordisk A/S A fluid infusion system, a method of assembling such system and drug reservoir for use in the system
US9144648B2 (en) 2006-05-03 2015-09-29 Antares Pharma, Inc. Injector with adjustable dosing
US8251947B2 (en) 2006-05-03 2012-08-28 Antares Pharma, Inc. Two-stage reconstituting injector
US20090093793A1 (en) * 2007-10-02 2009-04-09 Yossi Gross External drug pump
US10420880B2 (en) 2007-10-02 2019-09-24 West Pharma. Services IL, Ltd. Key for securing components of a drug delivery system during assembly and/or transport and methods of using same
US9656019B2 (en) 2007-10-02 2017-05-23 Medimop Medical Projects Ltd. Apparatuses for securing components of a drug delivery system during transport and methods of using same
DE202007016705U1 (de) * 2007-11-28 2009-04-09 Inatec Gmbh Beutelschmelzer
DE202007016706U1 (de) 2007-11-28 2009-04-09 Inatec Gmbh Kolbenabstreifplatte für Auspresseinrichtung für Beutelschmelzer sowie damit verbundener Beutelschmelzer
WO2009114542A1 (en) 2008-03-10 2009-09-17 Antares Pharma, Inc. Injector safety device
EP2271387B1 (en) 2008-04-01 2016-06-15 Yukon Medical, LLC Dual container fluid transfer device
US9295776B2 (en) * 2008-04-11 2016-03-29 Medtronic Minimed, Inc. Reservoir plunger head systems and methods
EP2276527B1 (en) * 2008-05-20 2018-02-28 Avant Medical Corp. Autoinjector system
US8052645B2 (en) 2008-07-23 2011-11-08 Avant Medical Corp. System and method for an injection using a syringe needle
ES2738539T3 (es) 2008-08-05 2020-01-23 Antares Pharma Inc Inyector de dosis múltiples
CN102448515B (zh) * 2009-03-31 2014-07-23 赛诺菲-安万特德国有限公司 用于给药设备的安装装置和联接组件
JP5431051B2 (ja) * 2009-07-17 2014-03-05 株式会社大協精工 微少容量の注射器用ピストン及び該ピストンを取り付けたプランジャー
IN2012DN03239A (zh) 2009-10-16 2015-10-23 Janssen Biotech Inc
US9233213B2 (en) 2009-10-16 2016-01-12 Janssen Biotech, Inc. Palm activated drug delivery device
USD655017S1 (en) 2010-06-17 2012-02-28 Yukon Medical, Llc Shroud
CN102971032A (zh) * 2010-07-13 2013-03-13 诺沃—诺迪斯克有限公司 活塞杆座
JP2012029918A (ja) * 2010-07-30 2012-02-16 Terumo Corp ガスケット、プレフィルドシリンジ、及び打栓方法
US9675751B2 (en) 2010-07-31 2017-06-13 Becton, Dickinson And Company Infusion reservoir with push-on connector features and/or attachments therefor
LT2699293T (lt) 2011-04-20 2019-04-25 Amgen Inc. Automatinio purškimo prietaisas
US8496619B2 (en) 2011-07-15 2013-07-30 Antares Pharma, Inc. Injection device with cammed ram assembly
US9220660B2 (en) 2011-07-15 2015-12-29 Antares Pharma, Inc. Liquid-transfer adapter beveled spike
USD681230S1 (en) 2011-09-08 2013-04-30 Yukon Medical, Llc Shroud
US9370623B2 (en) 2011-12-08 2016-06-21 Sanofi-Aventis Deutschland Gmbh Drive assembly for a medication delivery device and medication delivery device comprising a drive assembly
KR20150003179A (ko) 2012-03-06 2015-01-08 안타레스 팔마, 인코퍼레이티드 분리력 특징을 가진 사전충전형 주사기
EP4186545A1 (en) 2012-04-06 2023-05-31 Antares Pharma, Inc. Needle assisted jet injection administration of testosterone compositions
WO2013169800A1 (en) 2012-05-07 2013-11-14 Antares Pharma, Inc. Injection device with cammed ram assembly
USD769444S1 (en) 2012-06-28 2016-10-18 Yukon Medical, Llc Adapter device
JP5391323B1 (ja) * 2012-10-23 2014-01-15 有限会社ミューコム 生物製剤注入装置
ES2763633T3 (es) 2013-02-11 2020-05-29 Antares Pharma Inc Dispositivo de inyección por chorro asistido por aguja que tiene fuerza de disparo reducida
JP6030803B2 (ja) 2013-03-11 2016-11-24 アンタレス・ファーマ・インコーポレーテッド ピニオンシステムを有する用量注射器
TWI639449B (zh) 2013-03-15 2018-11-01 美商安美基公司 用於注射器之匣盒
WO2014150201A1 (en) * 2013-03-15 2014-09-25 Janssen Biotech, Inc. Palm activated drug delivery device
US10561795B2 (en) 2013-10-07 2020-02-18 Sio2 Medical Products, Inc. Convertible plungers, film coated plungers and related syringe assemblies
US10850042B2 (en) 2014-09-10 2020-12-01 Sio2 Medical Products, Inc. Three-position plungers, film coated plungers and related syringe assemblies
WO2016042075A1 (en) 2014-09-18 2016-03-24 Novo Nordisk A/S Drug delivery device with piston driver distal feature
CN106714877A (zh) * 2014-09-18 2017-05-24 诺和诺德股份有限公司 带有药筒定心特征的药物传送装置
JP6711836B2 (ja) 2015-01-16 2020-06-17 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 薬剤送達デバイス
US10149943B2 (en) 2015-05-29 2018-12-11 West Pharma. Services IL, Ltd. Linear rotation stabilizer for a telescoping syringe stopper driverdriving assembly
JP6968050B2 (ja) 2015-07-14 2021-11-17 エスアイオーツー・メディカル・プロダクツ・インコーポレイテッド 切り替え可能なプランジャー、および医療用筒内でのその組み立て方法
US10086145B2 (en) 2015-09-22 2018-10-02 West Pharma Services Il, Ltd. Rotation resistant friction adapter for plunger driver of drug delivery device
US9987432B2 (en) 2015-09-22 2018-06-05 West Pharma. Services IL, Ltd. Rotation resistant friction adapter for plunger driver of drug delivery device
US10576207B2 (en) 2015-10-09 2020-03-03 West Pharma. Services IL, Ltd. Angled syringe patch injector
JP7017512B2 (ja) 2015-10-09 2022-02-08 ウェスト ファーマ サービシーズ イスラエル リミテッド 充填済流体容器の屈曲流体路型付属物
US11311674B2 (en) 2016-01-21 2022-04-26 West Pharma. Services IL, Ltd. Medicament delivery device comprising a visual indicator
CN109219456B (zh) 2016-01-21 2020-05-15 西医药服务以色列有限公司 自动注射器中的力牵制
CN109310816B (zh) 2016-01-21 2020-04-21 西医药服务以色列有限公司 针***和缩回机构
WO2017161076A1 (en) 2016-03-16 2017-09-21 Medimop Medical Projects Ltd. Staged telescopic screw assembly having different visual indicators
US10376647B2 (en) 2016-03-18 2019-08-13 West Pharma. Services IL, Ltd. Anti-rotation mechanism for telescopic screw assembly
US10918800B2 (en) 2016-05-31 2021-02-16 Sio2 Medical Products, Inc. Convertible plungers and methods for assembling the same in a medical barrel
US10549044B2 (en) * 2016-06-09 2020-02-04 Becton, Dickinson And Company Spacer assembly for drug delivery system
US11338090B2 (en) 2016-08-01 2022-05-24 West Pharma. Services IL, Ltd. Anti-rotation cartridge pin
JP7188877B2 (ja) * 2016-09-19 2022-12-13 ウエスト・ファーマ．サービシーズ・イスラエル，リミテッド 薬品送出デバイスのプランジャドライバのための回転抵抗摩擦アダプタ
USD870278S1 (en) 2017-01-13 2019-12-17 Sio2 Medical Products, Inc. Syringe plunger assembly
JP6921997B2 (ja) 2017-05-30 2021-08-18 ウェスト ファーマ サービシーズ イスラエル リミテッド ウェアラブル注射器のモジュラ駆動トレイン
EP3501574A1 (en) * 2017-12-21 2019-06-26 Q-Med AB An exchangeable cartridge for an injection device
WO2020233486A1 (en) * 2019-05-17 2020-11-26 Medtrum Technologies Inc. Bilaterally driven drug infusion device with multiple infusion modes

Citations (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1799463A (en) 1926-03-19 1931-04-07 George N Hein Hypodermic syringe
CH265347A (de) 1948-12-16 1949-11-30 Philippe Marcel Injektionsspritze.
GB836279A (en) 1957-03-26 1960-06-01 American Home Prod Syringe push rod
US3215320A (en) 1963-11-18 1965-11-02 Heisler Harold Container and dispenser for dispensing predetermined, set, measured amounts of material
DE1292787B (de) 1963-06-24 1969-04-17 Wimmer Pharma Gummi Gmbh Kolben fuer Spritzampullen
FR2003495A1 (en) 1968-03-08 1969-11-07 Triulzi Celestino Flask for injectable medical liq. is also hypodermic syringe - using flask base plug as piston and needle sheath as piston rod
US3827602A (en) 1970-10-26 1974-08-06 A Nicholls Dual tubular dispensing device
US3939833A (en) 1975-01-15 1976-02-24 Astra Pharmaceutical Products Inc. Piston construction for syringes
US4055177A (en) 1976-05-28 1977-10-25 Cohen Milton J Hypodermic syringe
US4331146A (en) 1976-12-23 1982-05-25 The West Company Syringe assembly
US4381779A (en) 1981-07-16 1983-05-03 Sterling Drug Inc. Deformable slidable piston to provide self-aspiration in hypodermic cartridge ampoules
GB2117249A (en) 1982-03-31 1983-10-12 Butterfield Group Hypodermic syringe cartridge
US4493703A (en) * 1982-03-31 1985-01-15 Butterfield Group Hypodermic syringe cartridge with non-retractable drive piston
US4498904A (en) 1981-02-12 1985-02-12 Turner Robert C Dose metering plunger devices for use with syringes
US4568335A (en) 1981-08-28 1986-02-04 Markwell Medical Institute, Inc. Device for the controlled infusion of medications
EP0204977A1 (en) 1985-05-14 1986-12-17 Ivion Corporation Syringe drive apparatus
US4710170A (en) 1987-02-12 1987-12-01 Habley Medical Technology Corporation Anti-needle strike and anti-drug abuse syringe
EP0327910A2 (en) 1988-02-10 1989-08-16 D.C.P. Af 1988 A/S A dosage unit for dosing a number of measured quantities of a liquid, such as an insulin preparation, from a cartridge
WO1990004424A1 (en) 1988-10-20 1990-05-03 Nujenko Pty Ltd Single use syringe
EP0395211A2 (en) 1989-04-28 1990-10-31 Maurice J. Landry, Jr. Non-reusable syringe
US4973318A (en) 1988-02-10 1990-11-27 D.C.P. Af 1988 A/S Disposable syringe
US4979943A (en) * 1990-03-15 1990-12-25 Trenner Lewis E Single use hypodermic syringe
US5085638A (en) * 1988-03-31 1992-02-04 David Farbstein Single use disposable syringe
US5094148A (en) 1989-05-08 1992-03-10 Habley Medical Technology Corporation Piston stem insert for a carpule based piston
WO1992011049A1 (en) 1990-12-21 1992-07-09 Novo Nordisk A/S A pen shaped device for nasal administration of doses of a liquid medicine
EP0497567A2 (en) 1991-01-30 1992-08-05 Daikyo Gomu Seiko Ltd. A laminated sanitary rubber article
WO1992012747A1 (fr) 1991-01-17 1992-08-06 Micro Dose Pharma Dispositif de delivrance de doses a usage unique
US5222942A (en) 1988-04-08 1993-06-29 Mohandes Bader Syringe, specifically for use in medicine
US5279585A (en) 1992-02-04 1994-01-18 Becton, Dickinson And Company Medication delivery pen having improved dose delivery features
US5300041A (en) 1992-06-01 1994-04-05 Habley Medical Technology Corporation Dose setting and repeating syringe
US5304152A (en) 1990-03-29 1994-04-19 Bernard Sams Dispensing device
US5331954A (en) 1990-12-21 1994-07-26 Novo Nordisk A/S Device for nasal delivery of liquid medications
US5353691A (en) 1993-04-14 1994-10-11 Habley Medical Technology Corp. Self-lubricating piston for pharmaceutical container
US5370628A (en) 1991-07-31 1994-12-06 Allison; Alan C. Safety needle and syringe
US5411488A (en) * 1994-05-06 1995-05-02 Sterling Winthrop Inc. Pre-filled syringe and pre-filled cartridge having an improved plunger and plunger rod for reducing syringing force
US5462535A (en) 1991-07-12 1995-10-31 Novo Nordisk A/S Syringe system
DE4423753C1 (de) 1994-06-27 1996-02-01 Schering Ag Mehrteilige Spritze mit einem Glaszylinder
US5496285A (en) 1993-11-19 1996-03-05 Firma Carl Freudenberg Disposable syringe
US5531693A (en) 1992-04-10 1996-07-02 Vounatsos; Constantin Single-use syringe
US5591131A (en) 1995-08-22 1997-01-07 Chen; Long-Hsiung Safety minute dose hypodermic syringe
US5620423A (en) * 1993-09-23 1997-04-15 Heraeus Kulzer Gmbh Syringe for the controlled discharge of viscous materials
US5626566A (en) 1991-10-18 1997-05-06 Novo Nordisk A/S Large dose pen
WO1997029798A1 (en) 1996-02-16 1997-08-21 Harwill Industries (Pty.) Limited Device
US5688252A (en) 1994-09-30 1997-11-18 Takeda Chemical Industries, Ltd. Syringe
WO1998011927A1 (de) 1996-09-20 1998-03-26 Disetronic Licensing Ag Abtriebsglied für den vorschub eines stopfens einer spritzampulle und stopfen hierzu
EP0893133A1 (fr) 1997-07-24 1999-01-27 Medex Dispositif d'injection d'un liquide à usage médical, seringue associée au dispositif et procédé de mise en place de la seringue
US5875976A (en) 1996-12-24 1999-03-02 Medi-Ject Corporation Locking mechanism for nozzle assembly
WO1999020330A1 (en) 1997-10-23 1999-04-29 Bristol-Myers Squibb Company Preloadable syringe for automated dispensing device
US5947929A (en) * 1997-08-22 1999-09-07 Coeur Laboratories, Inc. Front-load angiographic injector system, angiographic syringe and plunger for angiographic syringe
US6004297A (en) 1998-01-30 1999-12-21 Novo Nordisk A/S Injection syringe
US6004300A (en) 1997-08-28 1999-12-21 Butcher; Robert M Composite hypodermic syringe piston
EP1002551A2 (en) 1998-11-19 2000-05-24 Bracco International B.V. Easy-slip plunger/plunger rod assembly for a syringe or a cartridge
US6080136A (en) 1998-06-11 2000-06-27 Polyten Plastics, Llc Angiographic syringe adapter for front-loading injector
US6142978A (en) 2000-01-24 2000-11-07 Bracco Diagnostics, Inc. Self-aligning plunger rod
US6206859B1 (en) 2000-01-24 2001-03-27 Bracco Diagnostics, Inc. Self-aligning plunger rod
US6221053B1 (en) 1998-02-20 2001-04-24 Becton, Dickinson And Company Multi-featured medication delivery pen
US6221046B1 (en) 1995-03-07 2001-04-24 Eli Lilly And Company Recyclable medication dispensing device
JP2002528676A (ja) 1998-10-29 2002-09-03 メドトロニック ミニメド インコーポレイテッド 小型で経済的なポンプ駆動システム
US6447487B1 (en) 1999-08-13 2002-09-10 CANé S.R.L. Apparatus for administering drugs to a patient
WO2002096487A1 (en) 2001-05-30 2002-12-05 Acist Medical Systems, Inc. Medical injection system
US6569126B1 (en) 1997-07-14 2003-05-27 Novo Nordisk A/S Cylinder ampoule
US20030120219A1 (en) 2001-12-06 2003-06-26 Nielsen Lars Korsbjerg Medical delivery system
WO2003101368A2 (en) 2002-06-04 2003-12-11 Berman Irwin R Focused dosimetry device and methods associated therewith
WO2004014476A1 (en) 2002-08-06 2004-02-19 Lameplast S.P.A. Cannula for dispensing viscous products, particularly medicinal pastes, ointments and creams
US6800071B1 (en) * 1998-10-29 2004-10-05 Medtronic Minimed, Inc. Fluid reservoir piston
WO2005002652A2 (de) 2003-07-03 2005-01-13 Disetronic Licensing Ag Vorrichtung zur verabreichung eines flüssigen produkts
WO2007118907A1 (en) 2006-04-19 2007-10-25 Novo Nordisk A/S A fluid infusion system, a method of assembling such system and drug reservoir for use in the system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59305599D1 (de) * 1992-06-15 1997-04-10 Max Wyssmann Vorrichtung zur gezielten, steuerbaren abgabe einer flüssigkeit oder einer viskosen masse
JP2001513406A (ja) * 1997-08-22 2001-09-04 コエール ラボラトリーズ，インコーポレイテッド 血管造影噴射注液と前荷重噴射アダプター
JP4462798B2 (ja) * 1999-11-24 2010-05-12 メドラッド インコーポレーテッド フロントローディング式医療用インジェクター及びシリンジ
US6432089B1 (en) * 2000-06-21 2002-08-13 Medrad, Inc. Medical syringe
JP3623942B2 (ja) * 2002-02-18 2005-02-23 株式会社根本杏林堂 ピストンヘッドおよびシリンジ

Patent Citations (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1799463A (en) 1926-03-19 1931-04-07 George N Hein Hypodermic syringe
CH265347A (de) 1948-12-16 1949-11-30 Philippe Marcel Injektionsspritze.
GB836279A (en) 1957-03-26 1960-06-01 American Home Prod Syringe push rod
DE1292787B (de) 1963-06-24 1969-04-17 Wimmer Pharma Gummi Gmbh Kolben fuer Spritzampullen
US3215320A (en) 1963-11-18 1965-11-02 Heisler Harold Container and dispenser for dispensing predetermined, set, measured amounts of material
FR2003495A1 (en) 1968-03-08 1969-11-07 Triulzi Celestino Flask for injectable medical liq. is also hypodermic syringe - using flask base plug as piston and needle sheath as piston rod
US3827602A (en) 1970-10-26 1974-08-06 A Nicholls Dual tubular dispensing device
US3939833A (en) 1975-01-15 1976-02-24 Astra Pharmaceutical Products Inc. Piston construction for syringes
US4055177A (en) 1976-05-28 1977-10-25 Cohen Milton J Hypodermic syringe
US4331146A (en) 1976-12-23 1982-05-25 The West Company Syringe assembly
US4498904A (en) 1981-02-12 1985-02-12 Turner Robert C Dose metering plunger devices for use with syringes
US4381779A (en) 1981-07-16 1983-05-03 Sterling Drug Inc. Deformable slidable piston to provide self-aspiration in hypodermic cartridge ampoules
US4568335A (en) 1981-08-28 1986-02-04 Markwell Medical Institute, Inc. Device for the controlled infusion of medications
GB2117249A (en) 1982-03-31 1983-10-12 Butterfield Group Hypodermic syringe cartridge
US4493703A (en) * 1982-03-31 1985-01-15 Butterfield Group Hypodermic syringe cartridge with non-retractable drive piston
EP0204977A1 (en) 1985-05-14 1986-12-17 Ivion Corporation Syringe drive apparatus
US4710170A (en) 1987-02-12 1987-12-01 Habley Medical Technology Corporation Anti-needle strike and anti-drug abuse syringe
EP0327910A2 (en) 1988-02-10 1989-08-16 D.C.P. Af 1988 A/S A dosage unit for dosing a number of measured quantities of a liquid, such as an insulin preparation, from a cartridge
US4973318A (en) 1988-02-10 1990-11-27 D.C.P. Af 1988 A/S Disposable syringe
US5085638A (en) * 1988-03-31 1992-02-04 David Farbstein Single use disposable syringe
US5222942A (en) 1988-04-08 1993-06-29 Mohandes Bader Syringe, specifically for use in medicine
WO1990004424A1 (en) 1988-10-20 1990-05-03 Nujenko Pty Ltd Single use syringe
EP0395211A2 (en) 1989-04-28 1990-10-31 Maurice J. Landry, Jr. Non-reusable syringe
US5094148A (en) 1989-05-08 1992-03-10 Habley Medical Technology Corporation Piston stem insert for a carpule based piston
US4979943A (en) * 1990-03-15 1990-12-25 Trenner Lewis E Single use hypodermic syringe
US5304152A (en) 1990-03-29 1994-04-19 Bernard Sams Dispensing device
WO1992011049A1 (en) 1990-12-21 1992-07-09 Novo Nordisk A/S A pen shaped device for nasal administration of doses of a liquid medicine
US5331954A (en) 1990-12-21 1994-07-26 Novo Nordisk A/S Device for nasal delivery of liquid medications
WO1992012747A1 (fr) 1991-01-17 1992-08-06 Micro Dose Pharma Dispositif de delivrance de doses a usage unique
EP0497567A2 (en) 1991-01-30 1992-08-05 Daikyo Gomu Seiko Ltd. A laminated sanitary rubber article
US5462535B1 (en) 1991-07-12 1996-12-31 Novo Nordisk As Syringe system
US5462535A (en) 1991-07-12 1995-10-31 Novo Nordisk A/S Syringe system
US5370628A (en) 1991-07-31 1994-12-06 Allison; Alan C. Safety needle and syringe
US5626566A (en) 1991-10-18 1997-05-06 Novo Nordisk A/S Large dose pen
US5279585A (en) 1992-02-04 1994-01-18 Becton, Dickinson And Company Medication delivery pen having improved dose delivery features
US5531693A (en) 1992-04-10 1996-07-02 Vounatsos; Constantin Single-use syringe
US5300041A (en) 1992-06-01 1994-04-05 Habley Medical Technology Corporation Dose setting and repeating syringe
US5353691A (en) 1993-04-14 1994-10-11 Habley Medical Technology Corp. Self-lubricating piston for pharmaceutical container
US5620423A (en) * 1993-09-23 1997-04-15 Heraeus Kulzer Gmbh Syringe for the controlled discharge of viscous materials
US5496285A (en) 1993-11-19 1996-03-05 Firma Carl Freudenberg Disposable syringe
US5411488A (en) * 1994-05-06 1995-05-02 Sterling Winthrop Inc. Pre-filled syringe and pre-filled cartridge having an improved plunger and plunger rod for reducing syringing force
DE4423753C1 (de) 1994-06-27 1996-02-01 Schering Ag Mehrteilige Spritze mit einem Glaszylinder
US5688252A (en) 1994-09-30 1997-11-18 Takeda Chemical Industries, Ltd. Syringe
US6221046B1 (en) 1995-03-07 2001-04-24 Eli Lilly And Company Recyclable medication dispensing device
US5591131A (en) 1995-08-22 1997-01-07 Chen; Long-Hsiung Safety minute dose hypodermic syringe
WO1997029798A1 (en) 1996-02-16 1997-08-21 Harwill Industries (Pty.) Limited Device
WO1998011927A1 (de) 1996-09-20 1998-03-26 Disetronic Licensing Ag Abtriebsglied für den vorschub eines stopfens einer spritzampulle und stopfen hierzu
US5875976A (en) 1996-12-24 1999-03-02 Medi-Ject Corporation Locking mechanism for nozzle assembly
US6569126B1 (en) 1997-07-14 2003-05-27 Novo Nordisk A/S Cylinder ampoule
EP0893133A1 (fr) 1997-07-24 1999-01-27 Medex Dispositif d'injection d'un liquide à usage médical, seringue associée au dispositif et procédé de mise en place de la seringue
US5947929A (en) * 1997-08-22 1999-09-07 Coeur Laboratories, Inc. Front-load angiographic injector system, angiographic syringe and plunger for angiographic syringe
US6004300A (en) 1997-08-28 1999-12-21 Butcher; Robert M Composite hypodermic syringe piston
WO1999020330A1 (en) 1997-10-23 1999-04-29 Bristol-Myers Squibb Company Preloadable syringe for automated dispensing device
US5928202A (en) 1997-10-23 1999-07-27 Bristol-Myers Sauibb Company Preloadable syringe for automated dispensing device
JP2001520087A (ja) 1997-10-23 2001-10-30 ブリストル−マイヤーズ スクイブ カンパニー 自動分配装置用の、予め充填可能な注射器
US6004297A (en) 1998-01-30 1999-12-21 Novo Nordisk A/S Injection syringe
US6221053B1 (en) 1998-02-20 2001-04-24 Becton, Dickinson And Company Multi-featured medication delivery pen
US6080136A (en) 1998-06-11 2000-06-27 Polyten Plastics, Llc Angiographic syringe adapter for front-loading injector
US6800071B1 (en) * 1998-10-29 2004-10-05 Medtronic Minimed, Inc. Fluid reservoir piston
JP2002528676A (ja) 1998-10-29 2002-09-03 メドトロニック ミニメド インコーポレイテッド 小型で経済的なポンプ駆動システム
EP1002551A2 (en) 1998-11-19 2000-05-24 Bracco International B.V. Easy-slip plunger/plunger rod assembly for a syringe or a cartridge
US6447487B1 (en) 1999-08-13 2002-09-10 CANé S.R.L. Apparatus for administering drugs to a patient
US6142978A (en) 2000-01-24 2000-11-07 Bracco Diagnostics, Inc. Self-aligning plunger rod
US6206859B1 (en) 2000-01-24 2001-03-27 Bracco Diagnostics, Inc. Self-aligning plunger rod
WO2002096487A1 (en) 2001-05-30 2002-12-05 Acist Medical Systems, Inc. Medical injection system
US20030120219A1 (en) 2001-12-06 2003-06-26 Nielsen Lars Korsbjerg Medical delivery system
WO2003101368A2 (en) 2002-06-04 2003-12-11 Berman Irwin R Focused dosimetry device and methods associated therewith
WO2004014476A1 (en) 2002-08-06 2004-02-19 Lameplast S.P.A. Cannula for dispensing viscous products, particularly medicinal pastes, ointments and creams
WO2005002652A2 (de) 2003-07-03 2005-01-13 Disetronic Licensing Ag Vorrichtung zur verabreichung eines flüssigen produkts
US20060151545A1 (en) 2003-07-03 2006-07-13 Erich Imhof Device for administering a liquid product
WO2007118907A1 (en) 2006-04-19 2007-10-25 Novo Nordisk A/S A fluid infusion system, a method of assembling such system and drug reservoir for use in the system

Non-Patent Citations (23)

* Cited by examiner, † Cited by third party
Title
Advisory Action mailed Feb, 23, 2005 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Advisory Action mailed Jul. 23, 2008 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
English language, machine generated translation for DE1292787 published on Apr. 17, 1969.
English translation of CH 265347.
Final Office Action mailed Aug. 12, 2002 in U.S. Appl. No. 09/111,832, filed Jul. 8, 1998 by Poulsen et al.
Final Office Action mailed Aug. 6, 2007 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Final Office Action mailed Jan. 8, 2007 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Final Office Action mailed May 12, 2008 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Final Office Action mailed Oct. 10, 2008 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Final Office Action mailed Oct. 20, 2004 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
International Preliminary Examination Report issued in connection with commonly owned PCT Application No. PCT/DK02/00813, mailed Mar. 29, 2004.
International Search Report issued in connection with commonly owned PCT Application No. PCT/EP2007/053865, mailed Jul. 23, 2007.
International Search Report issued in connection with commonly owned PCT Application No. PCT/EP2007/053866, mailed Aug. 9, 2007.
Non-Final Office Action mailed Apr. 27, 2007 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Non-Final Office Action mailed Dec. 14, 2001 in U.S. Appl. No. 09/111,832, filed Jul. 8, 1998 by Poulsen et al.
Non-Final Office Action mailed Jan. 8, 2008 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Non-Final Office Action mailed Jul. 7, 2006 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Non-Final Office Action mailed Mar. 26, 2004 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Non-Final Office Action mailed Sep. 22, 2005 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Notice of Allowance mailed Jan. 7, 2003 in U.S. Appl. No. 09/111,832, filed Jul. 8, 1998 by Poulsen et al.
Order Dismissing Appeal mailed Mar. 19, 2010 in U.S. Appl. No. 10/308,367, filed Dec. 3, 2002 by Nielsen et al.
Search Report issued in connection with commonly owned PCT Application No. PCT/DK02/00813, mailed Mar. 25, 2003.
Written Opinion issued in connection with commonly owned PCT Application No. PCT/DK02/00813, mailed Mar. 3, 2004.

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US9925338B2 (en) * 2008-11-26 2018-03-27 Acist Medical Systems, Inc. Apparatus and methods for fluid pressurizing units of injection systems
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US10350349B2 (en) 2014-05-20 2019-07-16 Cequr Sa Medicine delivery device with restricted access filling port
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US10857287B2 (en) 2017-01-06 2020-12-08 Trustees Of Boston University Infusion system and components thereof
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US10583250B2 (en) 2017-01-13 2020-03-10 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
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US10610644B2 (en) 2017-01-13 2020-04-07 Bigfoot Biomedical, Inc. Insulin delivery methods, systems and devices
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US10500334B2 (en) 2017-01-13 2019-12-10 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
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US10881792B2 (en) 2017-01-13 2021-01-05 Bigfoot Biomedical, Inc. System and method for adjusting insulin delivery
US11027063B2 (en) 2017-01-13 2021-06-08 Bigfoot Biomedical, Inc. Insulin delivery methods, systems and devices
US11633535B2 (en) 2019-07-16 2023-04-25 Beta Bionics, Inc. Ambulatory device and components thereof
US11571507B2 (en) 2019-07-16 2023-02-07 Beta Bionics, Inc. Ambulatory device and components thereof
US11278661B2 (en) 2020-03-10 2022-03-22 Beta Bionics, Inc. Infusion system and components thereof
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ATE552874T1 (de) 2012-04-15
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JP2009534072A (ja) 2009-09-24
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